Composite guide wire twisting equipment and manufacturing method

Abstract

The invention discloses composite guide wire twisting equipment and a manufacturing method, and relates to the technical field of twisting equipment. The composite wire guiding and twisting equipment comprises a twisting weaving mechanism and a weaving mechanism, a second twisting disc of the twisting weaving mechanism rotates to drive a second wire releasing device to do circular motion, and weaving yarn released by the second wire releasing device is twisted into first wires; a first twisting disc of the twist weaving mechanism drives a first yarn releasing device to rotate, so that the weaving yarns released by the first yarn releasing device are twisted into second yarns; the second yarn twisted and woven by the first yarn releasing device covers the outer side of the first yarn; a yarn carrying spindle assembly of the weaving mechanism comprises a yarn carrying spindle and a spindle seat, the spindle seat drives the yarn carrying spindle to rotate, and weaving yarn released by the yarn carrying spindle is twisted into third yarn; and the third yarn twisted and woven by the yarn-carrying spindle covers the outer side of the second yarn to form the composite guide yarn. The equipment replaces manual winding, achieves automatic production, and solves the problems that manual winding of the composite guide wire is low in efficiency, time-consuming and labor-consuming, the difference of wound products is large, the wound products are polluted, and the product quality is affected.

Description

Technical Field

[0001] The invention relates to the technical field of twisting and braiding equipment, and in particular to a composite guide wire twisting and braiding equipment and a manufacturing method thereof. Background Art

[0002] Medical composite guidewires are devices specially designed for medical interventional surgery. They are used to guide other medical devices (such as catheters, stents, etc.) into the human body, and can help doctors accurately place the devices in the lesions or tissues. Medical composite guidewires are usually composed of a core rod, an insulation layer, and an outer layer. The core rod is generally made of stainless steel or nickel-titanium alloy to provide the necessary rigidity and support; the insulation layer is used to protect the core rod to avoid damage during operation; the outer layer is usually made of polymer materials to increase the flexibility and wear resistance of the guidewire.

[0003] At present, the existing technology requires a lot of manual work to wind the medical composite guidewires. However, during manual production, multiple people need to work together to complete the production of the composite guidewires, which is not only inefficient, time-consuming and labor-intensive, but also has great differences in the products wound manually, and is easy to contaminate the wound products, seriously affecting product quality. In addition, since medical composite guidewires are used for interventional medical devices, during access intervention surgery, the existing composite guidewires are prone to bending and deformation during use, affecting the progress of the surgery. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a composite guide wire twisting device and a production method, which not only solves the problems in the prior art of low efficiency, time-consuming and labor-intensive manual winding of composite guide wires, great differentiation of wound products, pollution of wound products, and impact on product quality, but also can solve the problem that composite guide wires are easily bent and deformed during use.

[0005] The present invention provides a composite guide wire twisting and braiding device, comprising:

[0006] The twisting mechanism comprises a first twisting disc assembly and a second twisting disc assembly;

[0007] The second torsion disc assembly comprises a second torsion disc and a second wire releaser, the second wire releaser is connected to the second torsion disc, the second torsion disc can rotate and drive the second wire releaser to make a circular motion, so that the braided yarn released by the second wire releaser is twisted into the first wire;

[0008] The first torsion disc assembly comprises a first torsion disc and a first wire releaser, the first wire releaser is connected to the first torsion disc, the first torsion disc drives the first wire releaser to rotate, so that the braided yarn released by the first wire releaser is twisted into a second wire; a plurality of the first torsion disc assemblies are arranged around the first wire, so that the second wires twisted by the plurality of the first wire releasers are covered on the outside of the first wire;

[0009] The weaving mechanism comprises a yarn-carrying spindle assembly, wherein the yarn-carrying spindle assembly comprises a yarn-carrying spindle and a spindle seat, wherein the spindle seat is rotatable, the yarn-carrying spindle is connected to the spindle seat, and the spindle seat drives the yarn-carrying spindle to rotate, so that the weaving yarn released by the yarn-carrying spindle is twisted into a third wire; a plurality of the yarn-carrying spindle assemblies are arranged around the second wire, so that the third wire twisted by the plurality of the yarn-carrying spindles is wrapped around the outside of the second wire to form a composite guide wire.

[0010] In some embodiments, the twisting mechanism also includes a wire guide disk, the wire guide disk includes a shaft and a bracket, the shaft is a hollow shaft, and the first wire passes through the shaft; the bracket is provided with a through hole, and the second wire passes through the bracket, and multiple first torsion disk assemblies are evenly distributed on the outside of the wire guide disk, so that the second wire is wrapped around the outside of the first wire, and the center of the second torsion disk is concentric with the center of the shaft.

[0011] In some embodiments, the weaving mechanism includes a core tube having a cavity therein, the first wire and the second wire passing through the core tube, and the yarn carrying spindle assembly surrounds the outside of the core tube so that the third wire woven by the yarn carrying spindle assembly is wrapped around the outside of the second wire to form the composite guide wire.

[0012] In some embodiments, the twisting mechanism further includes a second power motor, a second motor gear and an intermediate gear, wherein the second power motor is connected to the second motor gear, the intermediate gear is located between the second motor gear and the first torsion plate assembly, the intermediate gear is respectively meshed with the second motor gear and the first torsion plate assembly, and the second power motor provides power for the first torsion plate assembly;

[0013] The first torsion plate assembly includes a torsion plate shaft, a spacer sleeve, a retaining spring, a third bearing, a stopper sleeve, a fourth bearing, a torsion gear, a pressure plate and a pressure plate bolt. A through hole is provided at the center of the torsion gear. The fourth bearing, the stopper sleeve, the third bearing and the retaining spring are sequentially installed in the hole at the center of the torsion gear. The retaining spring abuts against the third bearing. The spacer sleeve and the torsion gear are sleeved on the outer periphery of the torsion plate shaft. The pressure plate and the pressure plate bolt are fixedly connected to the top end of the torsion plate shaft. The pressure plate abuts against the fourth bearing, so that the torsion gear is fixedly connected to the torsion plate shaft and rotates around the torsion plate shaft.

[0014] The torsion gear surrounds the outer side of the wire guide disk, the first torsion disk is connected to the torsion gear, and the intermediate gear is meshed with the torsion gear; the second power motor drives the second motor gear to rotate, and in turn drives the intermediate gear and the torsion gear to rotate, thereby driving the first torsion disk to rotate.

[0015] In some embodiments, the weaving mechanism further comprises a base plate, a guide plate, a first power motor, a first motor gear and a dial gear assembly, the base plate and the guide plate are both provided with a plurality of circular holes for installing the dial gear assembly, a circular groove is provided on the outer side of the circular hole of the guide plate, the spindle carrying assembly abuts against the guide plate, the first power motor is connected to the first motor gear, and the first motor gear is meshed with the dial gear assembly;

[0016] The dial gear assembly is provided with a dial gear and a dial, the dial gear is connected to the dial, the spindle seat is connected to the dial, the dial gear is meshed with the first motor gear, the first power motor drives the first motor gear to rotate, and in turn drives the dial gear and the dial to rotate, so that the spindle seat moves circumferentially, and the knitting yarns released by the two yarn-carrying spindles distributed on the adjacent dials are crossed with each other;

[0017] The yarn carrying spindle assembly also includes a guide head, which is connected to the spindle seat. The side of the guide head facing away from the spindle seat abuts against the guide plate, and the guide head rotates in the circular groove of the guide plate driven by the spindle seat.

[0018] In some embodiments, multiple dial gears and multiple dials are arranged around the outside of the core tube with the core tube as the center, and multiple dial gears are meshed with each other; multiple dial gears rotate to drive multiple dials to rotate, and multiple dials drive multiple groups of yarn carrying spindles to make circular motions, and multiple guide heads rotate in the guide disks, so that the weaving yarns released by multiple groups of yarn carrying spindles cross each other to form the third wire and are wrapped around the outside of the second wire.

[0019] In some embodiments, a traction mechanism is further included, wherein the center of the traction mechanism is concentric with the center of the core tube;

[0020] The traction mechanism includes a guide shaft seat, a forward and reverse lead screw, an upper pressure wheel assembly, a lower pressure wheel assembly and a limit bracket; the guide shaft seat is located on both sides of the forward and reverse lead screws, the upper pressure wheel assembly and the lower pressure wheel assembly are arranged opposite to each other, and are sleeved on the outer sides of the forward and reverse lead screws and the guide shaft seat, the guide shaft seat provides guidance for the upper pressure wheel assembly and the lower pressure wheel assembly, and the forward and reverse lead screws drive the upper pressure wheel assembly and the lower pressure wheel assembly to move;

[0021] Through holes are arranged on both sides of the limiting bracket, and the central axes of the through holes on both sides of the limiting bracket are on the same line with the closed contact surfaces of the upper pressing wheel assembly and the lower pressing wheel assembly.

[0022] In some embodiments, it further includes a wire taking-up mechanism for taking up the composite guide wire;

[0023] The wire-winding mechanism includes a fourth motor, a power motor shaft, a power wheel, a power belt, a wire-winding device wheel, a wire-winding device and a wire reel. The power wheel is connected to the power motor shaft, and the wire-winding device is connected to the wire-winding device wheel. The power belt is sleeved on the outside of the power wheel and the wire-winding device wheel so that the power motor shaft can drive the wire-winding device to rotate. The wire reel is connected to the fourth motor through the power motor shaft, and the composite guide wire is wound on the wire reel. The rotation speed of the wire reel is controlled by controlling the torque output by the fourth motor to achieve constant tension winding.

[0024] In some embodiments, it also includes a frame, which is provided with a threading plate die, a centering wire wheel, a wire guide wheel and a wire outlet guide wheel, and the threading plate die is concentric with the center of the twisting and weaving mechanism.

[0025] A composite guide wire twisting method, the composite guide wire twisting method comprising:

[0026] Pulling the first wire twisted by the second twisting disc assembly from the wire guide disc to the lower part of the threading plate die;

[0027] Pulling the second wire twisted by the first twisting disc assembly out of the wire guide disc to the lower part of the threading plate die;

[0028] Insert the first wire and the second wire at the lower part of the threading plate die into the core tube of the braiding mechanism, and pull them out from the other side into the traction mechanism;

[0029] Pulling the third yarn woven by the spindle-carrying assembly on the weaving mechanism into the traction mechanism;

[0030] The composite guide wire twisting and weaving device starts working, the second wire twisted and woven by the first twisting disc assembly is coated on the outside of the first wire twisted and woven by the second twisting disc assembly, and the third wire woven by the spindle assembly is coated on the outside of the second wire to form the composite guide wire;

[0031] The composite guide wire is pulled from the pulling mechanism to the wire taking-up mechanism for winding and coiling.

[0032] Beneficial effects of the present invention:

[0033] The present invention provides a composite guide wire twisting and weaving device, which is completed by the cooperation of a frame, a weaving mechanism, a twisting and weaving mechanism, a traction mechanism and a take-up mechanism. The twisting and weaving mechanism is provided with a second twisting disc assembly, a first twisting disc assembly and a guide wire disc, and the weaving mechanism is provided with a spindle assembly and a core tube. The first wire twisted and woven by the second twisting disc assembly passes through the guide wire disc and is covered by the second wire twisted and woven by the first twisting disc assembly. The first wire and the second wire pass through the core tube and are pulled to the traction mechanism for clamping. The third wire woven by the spindle assembly is covered on the outside of the second wire to form a composite guide wire, which passes through the traction mechanism and is pulled to the take-up mechanism for winding. The device replaces manual winding and realizes automated production, solving the problems of low efficiency, time-consuming and labor-intensive manual winding of composite guide wires, large differences in wound products, pollution of wound products, and affecting product quality.

[0034] The multiple yarn-carrying spindles of the weaving mechanism of the composite guide wire twisting equipment make a forward and reverse "8"-shaped cross motion along the guide rail in the guide disk of the weaving mechanism, forming a diamond mesh tube-shaped weaving structure. This structure can improve the strength of the guide wire, enhance the toughness of the guide wire and the bending resistance in multiple directions, and solve the problem of easy bending and deformation of the guide wire during surgery in the prior art.

[0035] The clamping center of the traction mechanism of the composite guide wire twisting and braiding equipment is concentric with the center of the braiding mechanism, which is beneficial to prevent the guide wire from bending during the production process, prevent the composite guide wire from being deformed, and improve the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A front view of a composite guide wire twisting and braiding device provided in an embodiment of the present invention;

[0037] Figure 2 A three-dimensional diagram of a composite guide wire twisting and braiding device provided in an embodiment of the present invention;

[0038] Figure 3 A three-dimensional diagram of a frame of a composite guide wire twisting and braiding equipment provided by an embodiment of the present invention;

[0039] Figure 4 A three-dimensional diagram of a braiding mechanism of a composite guide wire twisting and braiding device provided in an embodiment of the present invention;

[0040] Figure 5 An exploded view of a braiding mechanism of a composite guide wire twisting and braiding device provided in an embodiment of the present invention;

[0041] Figure 6 A three-dimensional diagram of the gear transmission of the braiding mechanism of the composite guide wire twisting and braiding equipment provided by an embodiment of the present invention;

[0042] Figure 7 An exploded view of a dial gear assembly of a braiding mechanism of a composite guide wire twisting and braiding device provided in an embodiment of the present invention;

[0043] Figure 8 An exploded view of a composite guide wire twisting and braiding device carrying a spindle provided by an embodiment of the present invention;

[0044] Fig. 9 A three-dimensional diagram of a twisting mechanism of a composite guide wire twisting and weaving device provided in an embodiment of the present invention;

[0045] Fig.10 An exploded view of a twisting mechanism of a composite guide wire twisting device provided in an embodiment of the present invention;

[0046] Fig.11 A three-dimensional diagram of the gear transmission of the twisting mechanism of the composite guide wire twisting device provided in an embodiment of the present invention;

[0047] Fig.12 An exploded view of the first twisting disc assembly of the twisting mechanism of the composite guide wire twisting and weaving equipment provided in an embodiment of the present invention;

[0048] Fig.13 A three-dimensional diagram of the second twisting disc assembly of the twisting mechanism of the composite guide wire twisting and weaving equipment provided in an embodiment of the present invention;

[0049] Fig.14 An exploded view of the second twisting disc assembly of the twisting mechanism of the composite guide wire twisting and weaving equipment provided in an embodiment of the present invention;

[0050] Fig.15 A three-dimensional diagram of a traction mechanism of a composite guide wire twisting and braiding device provided in an embodiment of the present invention;

[0051] Fig.16 An exploded view of a traction mechanism of a composite guide wire twisting and braiding device provided in an embodiment of the present invention;

[0052] Fig.17 A three-dimensional diagram of a wire take-up mechanism of a composite guide wire twisting and braiding device provided in an embodiment of the present invention;

[0053] Fig.18 A schematic diagram of a composite guide wire twisting and weaving device twisting and weaving a product provided by an embodiment of the present invention;

[0054] Fig.19 This is a cross-sectional view of a twisted product of a composite guide wire twisting device provided in an embodiment of the present invention.

[0055] In the figure: 1. frame; 2. weaving mechanism; 3. twisting mechanism; 4. traction mechanism; 5. take-up mechanism; 6. composite guide wire.

[0056] 11. Threading plate die mouth; 12. Centering wire wheel; 13. Wire guide wheel; 14. Wire outlet guide wheel.

[0057] 21. Base plate; 22. Guide plate; 23. First motor; 24. First motor gear; 25. Dial gear assembly; 251. Core shaft; 252. Washer; 253. First bearing; 254. Dial gear; 255. Dial; 256. Second bearing; 257. Press sleeve; 258. Locking nut; 259. Fixing nut; 26. Yarn carrying spindle assembly; 261. Yarn carrying spindle; 262. Spindle seat; 263. Guide head; 27. Center flange; 28. Core tube.

[0058] 31. Lower plate; 32. Motor fixing plate; 33. Second motor; 34. Second motor gear; 35. Intermediate gear; 36. First torsion plate assembly; 361. Torsion plate shaft; 362. Spacer; 363. Retaining spring; 364. Third bearing; 365. Stopper sleeve; 366. Fourth bearing; 367. Torsion gear; 368. Pressure plate; 369. Pressure plate bolt; 3610. First torsion plate; 3611. First wire releaser; 3612. Fixing bolt; 37. Wire guide plate; 371. Shaft; 372. Bracket; 38. Center sleeve; 39. Second torsion plate assembly; 391. First motor bracket; 392. Third motor; 393. Second torsion plate; 394. Second wire releaser.

[0059] 41. Fixed plate; 42. Guide shaft seat; 43. Forward and reverse screws; 44. Motor seat; 45. Opening and closing motor; 46. Upper pressure wheel assembly; 47. Lower pressure wheel assembly; 48. Screw bearing seat; 49. Limit bracket.

[0060] 51. Fourth motor; 52. Power motor shaft; 53. Power wheel; 54. Power belt; 55. Wire arrangement wheel; 56. Wire arrangement; 57. Wire take-up bottom plate; 58. Second motor bracket; 59. Top bracket; 510. Wire reel top shaft; 511. Wire reel; 512. Detection switch.

[0061] 61, the first thread; 62, the second thread; 63, the third thread. DETAILED DESCRIPTION

[0062] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0064] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] like Figure 1 and Figure 2 As shown, the present invention provides a composite guide wire twisting and weaving device, which includes a frame 1, a weaving mechanism 2, a twisting and weaving mechanism 3, a traction mechanism 4, and a take-up mechanism 5. The weaving mechanism 2, the twisting and weaving mechanism 3, the traction mechanism 4 and the take-up mechanism 5 are fixed on the frame 1, the twisting and weaving mechanism 3 is installed on one side of the weaving mechanism 2, the traction mechanism 4 is fixed on the side of the weaving mechanism 2 away from the twisting and weaving mechanism 3, and the clamping center of the traction mechanism 4 is concentric with the center of the weaving mechanism 2, which is beneficial to prevent the guide wire from bending during the production process and prevent the guide wire from deforming during the pulling process. The traction mechanism 4 can control the twisting and weaving speed and adjust the pitch size of the twisted wire weaving. The take-up mechanism 5 is fixed at one end of the traction mechanism 4 away from the weaving mechanism 2, and is used for winding and coiling the product after twisting and weaving.

[0066] like Figure 3As shown, in some embodiments, the frame 1 includes a threading plate die 11, a centering wire wheel 12, a guide wire wheel 13 and a wire outlet guide wheel 14. The threading plate die 11 is fixed to the frame. Preferably, the threading plate die 11 is concentric with the center of the twisting and weaving mechanism 3 to prevent the guide wire from twisting. Then the centering wire wheel 12 and the guide wire wheel 13 are installed on the frame in sequence. The centering wire wheel 12 and the guide wire wheel 13 are located between the twisting and weaving mechanism 3 and the weaving mechanism 2. The wire outlet guide wheel 14 is installed on the side of the frame 1 close to the take-up mechanism 5. The wire outlet guide wheel 14 is located between the traction mechanism 4 and the take-up mechanism 5, and is used to provide guidance for the wire bundle pulled out by the traction mechanism. The first wire 61 and the second wire 62 twisted by the twisting mechanism 3 pass through the threading plate die 11 in turn, are wound around the centering wire wheel 12, and then pass through the guide wire wheel 13, are pulled out from the center of the weaving mechanism 2 and are clamped in the traction mechanism 4. The composite guide wire 6 pulled out from the traction mechanism 4 passes through the outlet guide wheel 14 and enters the take-up mechanism 5 for winding and coiling.

[0067] like Figures 4 to 8 As shown, in some embodiments, the weaving mechanism 2 includes a base plate 21, a guide plate 22, a first motor 23, a first motor gear 24, a dial gear assembly 25, a spindle assembly 26, a center flange 27, and a core tube 28. The base plate 21 is fixedly connected to the frame 1, and a plurality of holes evenly distributed in a circumference are provided on the base plate 21. The guide plate 22 is installed on one side of the base plate 21, and a plurality of holes evenly distributed in a circumference are also provided on the guide plate 22. When installing, the plurality of holes evenly distributed in a circumference on the guide plate 22 need to be aligned with the plurality of holes evenly distributed in a circumference on the base plate 21. The first motor 23 is located on the side of the base plate 21 away from the guide plate 22, and provides power for the weaving mechanism 2. The first motor gear 24 is located on the side of the first motor 23 close to the base plate 21, and is fixedly connected to the first motor 23, and is used to transmit the power provided by the first motor 23. Multiple dial gear assemblies 25 are inserted into multiple circumferentially evenly distributed holes on the base plate 21 and the guide plate 22, and are connected to the base plate 21 and the guide plate 22. The end of the dial gear assembly 25 facing away from the base plate 21 is connected to the spindle carrying assembly 26 to provide power for the rotation of the spindle carrying assembly 26.

[0068] Furthermore, in some embodiments, the guide plate 22 is provided with multiple sets of guide rails, which are circular grooves and are located outside multiple holes evenly distributed on the guide plate 22. The guide rails are combined in pairs to form an "8"-shaped guide rail structure. The spindle carrying assembly 26 is located on the side of the guide plate 22 away from the base plate 21. The multiple spindle carrying assemblies 26 are connected to the dial gear assembly 25, and the bottoms thereof abut against the guide rails of the guide plate 22. The first motor 23 provides power, so that the first motor gear 24 drives the dial gear assembly 25 to rotate, thereby driving the spindle assembly 26 to rotate in the guide rail of the guide disk 22, driving the two spindle assemblies 26 closest to each other on the adjacent dial gears 255 to make an "8" cross motion in the guide rail of the guide disk 22, so that the braided yarns released by the spindles 261 cross each other, thereby forming the third wire 63, the third wire 63 is a diamond mesh tube braiding structure, the diamond mesh tube braiding structure can improve the strength of the guide wire, change the disadvantages of multiple square bends of the guide wire, increase the toughness of the guide wire, and improve the bending resistance of the guide wire in multiple directions. The center flange 27 is a column structure with a through hole in the center, connected to the base disk 21, inserted in the hole of the base disk 21, the core tube 28 is a hollow tube, installed in the through hole of the center flange 27, the first wire 61 and the second wire 62 formed by the twisting and weaving mechanism 3 pass through the core tube 28 and penetrate the braiding mechanism 2.

[0069] Furthermore, if Figure 7As shown, in some embodiments, the dial gear assembly 25 includes a spindle 251, a washer 252, a first bearing 253, a dial gear 254, a dial 255, a second bearing 256, a press sleeve 257, a locking nut 258, and a fixing nut 259. A through hole is provided at the center of the dial gear 254, and the first bearing 253 is installed in the through hole of the dial gear 254. The washer 252 and the dial gear 254 equipped with the first bearing 253 are sleeved on the outer periphery of the spindle 251 in sequence. A through hole is also provided at the center of the dial 255, and the second bearing 256 is installed in the through hole of the dial 255. The dial 255 equipped with the second bearing 256 is sleeved on the outer periphery of the spindle 251 and connected to the dial gear 254, so that the notch of the dial gear 254 abuts against the dial key of the dial 255. The pressing sleeve 257 is located at one end of the dial 255 away from the dial gear 254. The pressing sleeve 257 is sleeved on the outer periphery of the mandrel 251 and abuts against the second bearing 256. The locking nut 258 is also sleeved on the outer side of the mandrel 251 and located on the side of the pressing sleeve 257 away from the dial 255 and abuts against the pressing sleeve 257. The dial 255 is locked by the pressing sleeve 257 and the locking nut 258 to prevent the dial 255 from moving along the axis direction of the mandrel 251. The fixing nut 259 is sleeved on one end of the mandrel 251 and located on the side of the dial gear 254 away from the dial 255. The fixing nut 259 fixes the dial gear assembly 25 on the base plate 21. During the assembly process, when installing the guide plate 22, it is necessary to first remove the dial 255 on the dial gear assembly 25, align the multiple circumferentially distributed holes on the guide plate 22 with the multiple circumferentially distributed holes on the base plate 21, connect the guide plate 22 to the base plate 21, and finally, sleeve the dial 255 on the core shaft 251 and abut against the dial gear 254, and lock it using the press sleeve 257 and the locking nut 258.

[0070] Further, in this embodiment, the dial gear 254 is meshed with the first motor gear 24, the first motor 23 drives the first motor gear 24 to rotate, and the first motor gear 24 drives the dial gear 254 to rotate, thereby rotating the dial 255. The plurality of dial gears 254 and the plurality of dials 255 are uniformly distributed on the outside of the core tube 28 with the core tube 28 as the center of the circle, and the plurality of dial gears 254 are meshed with each other; the plurality of dial gears 254 rotate under the drive of the first motor gear 24, driving the plurality of dials 255 to rotate, and the plurality of dials 255 drive the plurality of groups of spindle carrying assemblies 26 to make circular motions, and the braided yarns released by the plurality of groups of spindle carrying assemblies 261 cross each other to form the third yarn 63, and are coated on the outside of the second yarn 62.

[0071] Furthermore, if Figure 8As shown, in some embodiments, the yarn-carrying spindle assembly 26 includes a yarn-carrying spindle 261, a spindle seat 262, and a guide head 263. The yarn-carrying spindle 261 is installed on the spindle seat 262, and two guide heads 263 are installed in two holes of the spindle seat 262, and the side of the guide head 263 away from the spindle seat 262 is connected to the guide rail of the guide disk 22. The spindle seat 262 is connected to the dial 255, and the rotation of the dial 255 drives the spindle seat 262 to rotate, thereby driving the yarn-carrying spindle 261 to rotate freely in the guide rail of the guide disk 22, so that the braiding yarns released by the two yarn-carrying spindles 261 distributed on the adjacent dials 255 intersect with each other, and the braiding yarns released by multiple yarn-carrying spindles 261 intersect with each other to form a third yarn 63, and the third yarn 63 is wrapped on the outside of the second yarn 62.

[0072] Specifically, in this embodiment, the number of the dial gear assemblies 25 is 8, and the number of the spindle carrying assemblies 26 is 16. Specifically, the number of the dial gear assemblies 25 is at least 2N, and the number of the spindle carrying assemblies 26 is at least 4N, wherein N should be greater than or equal to 2, so as to ensure that the third wire 63 woven by the weaving mechanism 2 covers the second wire 62.

[0073] like Figures 9 to 11 As shown, in some embodiments, the twisting mechanism 3 includes a lower plate 31, a motor fixing plate 32, a second motor 33, a second motor gear 34, an intermediate gear 35, a first twisting plate assembly 36, a wire guide plate 37, a center sleeve 38, and a second twisting plate assembly 39. The lower plate 31 is provided with a plurality of circumferentially distributed holes, the motor fixing plate 32 is located on one side of the lower plate 31, the motor fixing plate 32 is also provided with a plurality of circumferentially distributed holes, and the centers of the holes are aligned with the centers of the holes on the lower plate 31, the second motor 33 is located on the side of the motor fixing plate 32 away from the lower plate 31, and the second motor gear 34 is located between the second motor 33 and the motor fixing plate 32. The center sleeve 38 is fixedly connected to the hole of the lower plate 31, and the wire guide disc 37 is fixed in the center sleeve 38. The wire guide disc 37 includes a shaft 371 and a bracket 372. The center of the shaft is a cavity structure, which is convenient for passing the first wire 61 twisted by the second torsion disc assembly 39 through the wire guide disc 37. The bracket 372 is located at the end of the wire guide disc 37 away from the first torsion disc assembly 36. The bracket 372 is an umbrella-shaped structure with multiple branches. Each branch is provided with a circular hole for passing the second wire 62 twisted out by the first torsion disc assembly 36, so that the second wire 62 is covered on the outside of the first wire 61. The first torsion disc assembly 36 is provided with multiple, and the first torsion disc assembly 36 passes through multiple circumferentially distributed holes on the motor fixing disc 32 and is connected to multiple circumferentially distributed holes on the lower plate 31. The intermediate gear 35 is located between the second motor gear 34 and the first torsion plate assembly 36. There are multiple intermediate gears 35, which are respectively in contact with the second motor gear 34 and the first torsion plate assembly 36 to solve the problem that multiple first torsion plate assemblies cannot mesh with each other. The second torsion plate assembly 39 is located below the lower plate 31 and is fixedly connected to the frame 1.

[0074] Furthermore, if Fig.12 As shown, in some embodiments, the first torsion plate assembly 36 includes a torsion plate shaft 361, a spacer sleeve 362, a retaining spring 363, a third bearing 364, a stopper sleeve 365, a fourth bearing 366, a torsion gear 367, a pressure plate 368, a pressure plate bolt 369, a first torsion plate 3610, a first wire release device 3611, and a fixing bolt 3612. A through hole is provided in the center of the torsion gear 367, and the fourth bearing 366, the stopper sleeve 365, and the third bearing 364 are sequentially installed in the center hole of the torsion gear 367, and the retaining spring 363 is installed in the annular groove of the torsion gear 367 to limit the movement of the third bearing 364. Then, the spacer sleeve 362 and the center of the torsion gear 367 are sleeved on the outer periphery of the torsion plate shaft 361, and the pressure plate 368 and the pressure plate bolt 369 are fixedly connected to the top of the torsion plate shaft 361 to press the fourth bearing 366 to prevent the torsion gear 367 from moving along the axis direction of the torsion plate shaft 361. Finally, the first torsion plate 3610 is fixed to the torsion gear 367 by the fixing bolts 3612, and then a plurality of first wire releasers 3611 are evenly mounted on the first torsion plate 3610, thereby forming the first torsion plate assembly 36. The first torsion plate 3610 drives the first wire releasers 3611 to rotate, so that the braided yarn released by the first wire releasers 3611 is twisted into the second wire 62.

[0075] Specifically, in this embodiment, a plurality of torsion gears 367 are distributed around the guide wire disk 37 so that the second wire 62 covers the first wire 61. The plurality of torsion gears 367 cannot mesh with each other, so a plurality of intermediate gears 35 are installed between the plurality of torsion gears 367 so that the torsion gears 367 and the intermediate gears 35 mesh together so that the plurality of torsion gears 367 rotate in the same direction, and then a second motor 33 with a second motor gear 34 installed is installed on the motor fixing disk 32 so that the second motor gear 34 meshes with the intermediate gear 35 to provide power for the plurality of first torsion disk assemblies 36.

[0076] Furthermore, if Fig.13 and Fig.14As shown, in some embodiments, the second torsion disc assembly 39 includes a first motor bracket 391, a third motor 392, a second torsion disc 393 and a second wire releaser 394. The first motor bracket 391 is fixedly connected to the frame 1, the third motor 392 is fixedly connected to the first motor bracket 391, the second torsion disc 393 is fixedly connected to the output shaft of the third motor 392, and the third motor 392 provides power to the second torsion disc 393, so that it moves in a circular motion, so that the braided yarn released by the second wire releaser 394 is twisted into the first wire 61. A plurality of second wire releasers 394 are connected to the second torsion disc 393, and the number of the second wire releasers 394 is adapted to the number of wire bundles that need to be twisted. Preferably, the center of the second torsion disc 393 coincides with the center of the wire guide disc 37 to prevent the wire bundle from twisting, and ensure that the first wire 61 twisted out of the second torsion disc assembly 39 smoothly penetrates the wire guide disc 37. If the centers do not coincide, the wire bundle will cause friction with the tube wall of the wire guide disc 37, causing damage to the wire bundle. When the second motor 33 is working, it will drive multiple first torsion disc assemblies 36 to rotate in the same direction, and the multiple silk threads on each group are twisted together to form the second silk thread 62. At the same time, the second torsion disc assembly 39 is started, and the multiple silk threads on its second torsion disc 393 are also twisted together to form the first silk thread 61. The first silk thread 61 of the second torsion disc assembly 39 passes through the center hole of the wire guide disc 37, and the second silk thread 62 on the first torsion disc assembly 36 passes through the other circular holes on the wire guide disc 37. Finally, they are gathered together and pass through the center of the threading plate die 11, and enter the weaving mechanism 2 through the centering wire wheel 12 and the guide wire wheel 13. In this way, the twisting and weaving mechanism 3 completes its work.

[0077] Specifically, in this embodiment, the number of the second torsion disc assembly 39 is 1, the number of the second wire unwinding devices 394 is 2, the number of the first torsion disc assembly 36 is 8, and the number of the first wire unwinding devices 3611 is 16. Specifically, the number of the second torsion disc assembly 39 is at least one, the number of the first torsion disc assembly 36 is at least one, and the number of the first wire unwinding devices 3611 and the second wire unwinding devices 394 is at least two.

[0078] like Fig.15 and Fig.16As shown, in some embodiments, the traction mechanism 4 includes a fixed plate 41, a guide shaft seat 42, a forward and reverse screw 43, a motor seat 44, an opening and closing motor 45, an upper pressure wheel assembly 46, a lower pressure wheel assembly 47, a screw bearing seat 48, and a limit bracket 49. There are two guide shaft seats 42, which are installed on one side of the fixed plate 41, and the forward and reverse screws 43 are located between the two guide shaft seats 42. The lower pressure wheel assembly 47 is installed on the two guide shaft seats 42 and connected with the forward and reverse screws 43. The upper pressure wheel assembly 46 is located on the side of the lower pressure wheel assembly 47 away from the fixed plate 41, and is respectively connected with the two guide shaft seats 42 and the forward and reverse screws 43. The screw bearing seat 48 is located on the side of the upper pressure wheel assembly 46 away from the lower pressure wheel assembly 47, and is connected with the two guide shaft seats 42. The upper end of the forward and reverse screws 43 is connected with the screw bearing seat 48, and a bearing is provided at the connection between the two, so that the forward and reverse screws 43 are rotatably connected with the bearing seat 48. Through holes are provided on both sides of the limit bracket 49 for passing the woven wire bundle. The limit bracket 49 is located on the side of the screw bearing seat 48 away from the upper pressure wheel assembly 46. The through hole centers on both sides of the limit bracket 49 are on the same line with the closed contact surfaces of the upper pressure wheel assembly 46 and the lower pressure wheel assembly 47, ensuring that the wire bundle will not rub against the edge of the through hole, causing the wire bundle to wear. The motor seat 44 is fixed on the side of the fixed plate 41 away from the lower pressure wheel assembly 47, and the opening and closing motor 45 is fixed on the side of the motor seat 44 away from the fixed seat 41. The output shaft of the opening and closing motor 45 is connected to the forward and reverse screw 43. When the opening and closing motor 45 is working, it drives the forward and reverse screw 43 to rotate, so that the upper pressure wheel assembly 46 and the lower pressure wheel assembly 47 move up and down, and the movement directions are opposite, so as to achieve the purpose of opening and closing or clamping the traction mechanism 4.

[0079] like Fig.17As shown, in some embodiments, the wire-taking mechanism 5 includes a fourth motor 51, a power motor shaft 52, a power wheel 53, a power belt 54, a wire arrangement wheel 55, a wire arrangement 56, a wire-taking bottom plate 57, a second motor bracket 58, a top bracket 59, a wire reel top shaft 510, a wire reel 511, and a detection switch 512. The wire-taking bottom plate 57 is fixed on the frame 1, the second motor bracket 58 and the top bracket 59 are fixed on the wire-taking bottom plate 57, and the wire reel top shaft 510 is installed on the top bracket 59. The fourth motor 51 is fixed on the second motor bracket 58, the power motor shaft 52 is connected to the fourth motor 51, and the power wheel 53 is located at one end of the fourth motor 51 away from the second motor bracket 58, and is connected to the power motor shaft 52. The wire reel 511 has a through hole in the middle, and its two ends are fixedly connected to the wire reel top shaft 510 and the power motor shaft 52, respectively, and the power motor shaft 52 transmits power for the rotation of the wire reel 511. The cable arranging device 56 is fixedly connected to the frame 1, and detection switches 512 are installed on both sides of the cable arranging device 56 to detect the winding speed and feed it back to the fourth motor 51. The fourth motor 51 adjusts the torque output by the motor through the feedback information to control the rotation speed of the cable drum 511, thereby realizing constant tension winding. The cable arranging device wheel 55 is installed at one end of the cable arranging device 56, and the power belt 54 is sleeved on the outer side of the power wheel 53 and the cable arranging device wheel 55. The power belt 54 is used to transmit power, and transmits the power on the power wheel 53 to the cable arranging device wheel 55. When the fourth motor 51 is working, the power motor shaft 52 rotates and carries the cable drum 511 to make a circular motion, and at the same time drives the cable arranging device 56 to do a reciprocating cable arranging motion. The detection switch 512 detects a layer of cable arranging and gives a signal to control the fourth motor 51 to increase or decrease the output torque, so that the cable arranging tension will not be different due to the different diameters of the cable drum 511 when winding, thereby achieving constant tension winding.

[0080] Specifically, in this embodiment, Fig.18 As shown in FIG. 1 , it is a schematic diagram of the product twisted by the composite guide wire twisting and weaving device. On the left side, the twisting mechanism 3 twists the second wire; and on the right side, the weaving mechanism 2 weaves the third wire 63, which is sleeved outside the second wire 62, and finally forms the composite guide wire 6. Fig.19 As shown, it is a cross-sectional view of the product twisted by the composite guide wire twisting device, which is composed of a first wire 61, a second wire 62 and a third wire 63. The first wire 61 is twisted by the second twisting disc assembly 39, and the second wire 62 is twisted by the first twisting disc assembly 36 and is coated on the outside of the first wire 61. The third wire 63 is woven by the spindle carrying assembly 26, and is sleeved on the outside of the second wire 62, finally forming a composite guide wire 6. The composite guide wire 6 increases the toughness of the guide wire and the bending resistance in multiple directions, and can overcome the problem of twisting and deformation of the guide wire in the prior art when it is used.

[0081] The specific steps for making medical composite guidewires are as follows:

[0082] Step 1: Pull the wire on the second torsion disc assembly 39 from the center of the wire guide disc 37 to the lower part of the threading plate die 11. Pull the wire on the first torsion disc assembly 36 from the hole of the wire guide disc 37 to the lower part of the threading plate die 11. Pass the wire at the lower part of the threading plate die 11 through the threading plate die 11, through the centering wire wheel 12 and the wire wheel 13, and into the braiding mechanism 2. Pull the wire out from the other side into the traction mechanism 4 and clamp it with the traction mechanism 4.

[0083] Step 2: Pull out the thread of the weaving mechanism 2 and clamp it with the traction mechanism 4.

[0084] Step 3: The entire composite guide wire twisting equipment starts working, the second twisting disc assembly 39 twists the first wire 61, the first twisting disc assembly 36 twists the second wire 62, the second wire 62 is wrapped around the outside of the first wire 61, and the spindle assembly 26 weaves the third wire 63 and wraps it around the outside of the second wire 62.

[0085] Step 4: The twisted composite guide wire 6 drawn out by the traction mechanism 4 is wound around the take-up mechanism 5 for winding and coiling.

[0086] Step 5: Cut the wound composite guide wire 6 into required lengths and then put it into a shaping device for heating and shaping.

[0087] Step 6: After the composite guide wire 6 is formed, a layer of PTFE film is coated on its surface.

[0088] The working principle of the present invention is as follows: the composite wire guide twisting and weaving equipment is completed by the cooperation of a frame 1, a weaving mechanism 2, a twisting and weaving mechanism 3, a traction mechanism 4, and a wire taking-up mechanism 5. A plurality of first twisting disc assemblies 36 are installed on the twisting and weaving mechanism 3, a group of second twisting disc assemblies 39 are installed at the lower part of the twisting and weaving mechanism 3, and a wire guide disc 37 is also installed in the center for passing through the second twisting disc assembly 39 to twist and weave the first wire 61. A plurality of yarn carrying spindle assemblies 26 are installed on the weaving mechanism 2, and the plurality of yarn carrying spindle assemblies 26 are combined in pairs and connected to the dial gear assembly 25, and the bottom thereof abuts against the guide rail of the guide plate 22, driving two adjacent yarn carrying spindle assemblies 26 distributed on different dial gears to make an "8" cross motion in the guide rail of the guide plate 22, one forward and one reverse, thereby forming a crossed third wire 63. The weaving mechanism 2 is also provided with a core tube 28 for passing through the twisting and weaving mechanism 3 to twist and weave the first wire 61 and the second wire 62.

[0089] The silk threads of the multiple first wire releasers 3611 of the multiple first torsion disc assemblies 36 and the multiple second wire releasers 394 of the second torsion disc assemblies 39 on the twisting mechanism 3 are pulled out, passed through the holes of the wire guide disc 37 respectively, gathered together and passed through the center of the threading plate die 11, passed through the wire guide wheel 13 on the frame 1, entered the core tube 28 of the weaving mechanism 2, and then pulled out from the core tube 28 into the traction mechanism 4, and pressed by the upper pressure wheel assembly 46 and the lower pressure wheel assembly 47. Then the silk threads of the multiple spindles 261 on the weaving mechanism 2 are pulled out into the traction mechanism 4, and pressed by the upper pressure wheel assembly 46 and the lower pressure wheel assembly 47 of the traction mechanism, and the weaving mechanism 2, the twisting mechanism 3, the central torsion disc 39 assembly, the traction machine 4, and the take-up mechanism 5 are started at the same time, and the multiple first torsion disc assemblies 36 and the second torsion disc assemblies 39 on the twisting mechanism 3 are twisted to form the second wire 62 and the first wire 61, and the second wire 62 is wrapped around the outside of the first wire 61. The braiding mechanism 2 braids multiple wire bundles into a third wire 63, and covers the outer side of the second wire 62 to form a composite guide wire 6. The traction mechanism 4 can control the speed and adjust the pitch size of the twisted wire braiding, and the take-up mechanism 5 winds up the twisted composite guide wire 6.

[0090] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A composite guide wire twisting device, characterized in that: include: A twisting mechanism (3) comprising a first twisting disc assembly (36) and a second twisting disc assembly (39); The second torsion disk assembly (39) comprises a second torsion disk (393) and a second wire release device (394), wherein the second wire release device (394) is connected to the second torsion disk (393), and the second wire release device (394) is used to release the braiding yarn, and the second torsion disk (393) is configured to drive the second wire release device (394) to perform circumferential motion by rotating, so that the braiding yarn released by the second wire release device (394) is twisted into the first wire (61); The first torsion disc assembly (36) comprises a first torsion disc (3610) and a first wire releaser (3611), wherein the first wire releaser (3611) is connected to the first torsion disc (3610), and the first torsion disc (3610) is configured to drive the first wire releaser (3611) to rotate, so that the braided yarn released by the first wire releaser (3611) is twisted into a second wire (62); a plurality of the first torsion disc assemblies (36) are arranged around the first wire (61), so that the second wire (62) twisted by the plurality of the first wire releasers (3611) is wrapped around the outside of the first wire (61); A weaving mechanism (2) comprises a yarn-carrying spindle assembly (26), wherein the yarn-carrying spindle assembly (26) comprises a yarn-carrying spindle (261) and a spindle seat (262), wherein the spindle seat (262) is rotatable, the yarn-carrying spindle (261) is connected to the spindle seat (262), and the spindle seat (262) is configured to drive the yarn-carrying spindle (261) to rotate, so that the weaving yarn released by the yarn-carrying spindle (261) is twisted into a third wire (63); a plurality of the yarn-carrying spindle assemblies (26) are arranged around the second wire (62), so that the third wire (63) twisted by the plurality of the yarn-carrying spindles (261) is wrapped around the outside of the second wire (62), forming a composite guide wire (6).

2. A composite guide wire twisting device according to claim 1, characterized in that: The twisting mechanism (3) also includes a wire guide disk (37), and the wire guide disk (37) includes a shaft (371) and a bracket (372). The shaft (371) is a hollow shaft, and the first wire (61) passes through the shaft (371); the bracket (372) is provided with a through hole, and the second wire (62) passes through the bracket (372); a plurality of the first torsion disk assemblies (36) surround the outer side of the wire guide disk (37), so that the second wire (62) is wrapped around the outer side of the first wire (61); the center of the second torsion disk (393) is concentric with the center of the shaft (371).

3. A composite guide wire twisting device according to claim 1, characterized in that: The braiding mechanism (2) includes a core tube (28), a cavity is provided in the core tube (28), the first wire (61) and the second wire (62) pass through the core tube (28), and the yarn carrying spindle assembly (26) surrounds the outside of the core tube (28), so that the third wire (63) woven by the yarn carrying spindle assembly (26) is covered on the outside of the second wire (62), forming the composite guide wire (6).

4. A composite guide wire twisting device according to claim 2, characterized in that: The twisting mechanism (3) further comprises a second power motor (33), a second motor gear (34) and an intermediate gear (35); the second power motor (33) is connected to the second motor gear (34); the intermediate gear (35) is located between the second motor gear (34) and the first torsion plate assembly (36); the intermediate gear (35) is respectively meshed with the second motor gear (34) and the first torsion plate assembly (36); the second power motor (33) provides power for the first torsion plate assembly (36); The first torsion plate assembly (36) comprises a torsion plate shaft (361), a spacer sleeve (362), a retaining spring (363), a third bearing (364), a retaining sleeve (365), a fourth bearing (366), a torsion gear (367), a pressure plate (368) and a pressure plate bolt (369), wherein a through hole is provided at the center of the torsion gear (367), and the fourth bearing (366), the retaining sleeve (365), the third bearing (364) and the retaining spring (369) are sequentially installed in the hole at the center of the torsion gear (367). 363), the retaining spring (363) abuts against the third bearing (364); the spacer (362) and the torsion gear (367) are sleeved on the outer periphery of the torsion plate shaft (361), the pressure plate (368) and the pressure plate bolt (369) are fixedly connected to the top of the torsion plate shaft (361), the pressure plate (368) abuts against the fourth bearing (366), so that the torsion gear (367) is fixedly connected to the torsion plate shaft (361) and rotates around the torsion plate shaft (361); The torsion gear (367) surrounds the outer side of the wire guide disk (37), the first torsion disk (3610) is connected to the torsion gear (367), and the intermediate gear (35) is meshed with the torsion gear (367); the second power motor (33) drives the second motor gear (34) to rotate, and in turn drives the intermediate gear (35) and the torsion gear (367) to rotate, thereby driving the first torsion disk (3610) to rotate.

5. A composite guide wire twisting and braiding device according to claim 3, characterized in that: The knitting mechanism (2) further comprises a base plate (21), a guide plate (22), a first power motor (23), a first motor gear (24) and a dial gear assembly (25); the base plate (21) and the guide plate (22) are both provided with a plurality of circular holes for mounting the dial gear assembly (25); a circular groove is provided on the outer side of the circular holes of the guide plate (22); the spindle carrying assembly (26) is in contact with the guide plate (22); the first power motor (23) is connected with the first motor gear (24); and the first motor gear (24) is meshed with the dial gear assembly (25); The dial gear assembly (25) is provided with a dial gear (254) and a dial (255), the dial gear (254) is connected to the dial (255), the spindle seat (262) is connected to the dial (255), the dial gear (254) is meshed with the first motor gear (24), the first power motor (23) drives the first motor gear (24) to rotate, and in turn drives the dial gear (254) and the dial (255) to rotate, so that the spindle seat (262) performs circumferential motion, and the knitting yarns released by the two yarn-carrying spindles (261) distributed on the adjacent dials (255) are crossed with each other; The spindle carrying assembly (26) also includes a guide head (263), which is connected to the spindle seat (262). The side of the guide head (263) facing away from the spindle seat (262) abuts against the guide plate (22), and the guide head (263) is driven by the spindle seat (262) to rotate in the circular groove of the guide plate (22).

6. A composite guide wire twisting and braiding device according to claim 5, characterized in that: The plurality of dial gears (254) and the plurality of dials (255) are arranged around the outer side of the core tube (28) with the core tube (28) as the center, and the plurality of dial gears (254) are meshed with each other; the plurality of dial gears (254) rotate, driving the plurality of dials (255) to rotate, and the plurality of dials (255) drive the plurality of yarn carrying spindles (261) to make circular motions, and the plurality of guide heads (263) rotate in the guide disk (22), so that the braiding yarns released by the plurality of yarn carrying spindles (261) cross each other to form the third yarn (63) and are wrapped around the outer side of the second yarn (62).

7. A composite guide wire twisting and braiding device according to claim 6, characterized in that: It also includes a traction mechanism (4), the center of the traction mechanism (4) is concentric with the center of the core tube (28); The traction mechanism (4) comprises a guide shaft seat (42), a forward and reverse screw (43), an upper pressure wheel assembly (46), a lower pressure wheel assembly (47) and a limit bracket (49); the guide shaft seat (42) is located on both sides of the forward and reverse screw (43); the upper pressure wheel assembly (46) and the lower pressure wheel assembly (47) are arranged opposite to each other and are sleeved on the outer sides of the forward and reverse screw (43) and the guide shaft seat (42); the guide shaft seat (42) provides guidance for the upper pressure wheel assembly (46) and the lower pressure wheel assembly (47); the forward and reverse screw (43) drives the upper pressure wheel assembly (46) and the lower pressure wheel assembly (47) to move; Through holes are provided on both sides of the limiting bracket (49), and the central axes of the through holes on both sides of the limiting bracket (49) are on the same line with the closed contact surfaces of the upper pressure wheel assembly (46) and the lower pressure wheel assembly (47).

8. A composite guide wire twisting device according to claim 1, characterized in that: It also includes a wire taking-up mechanism (5) for taking up the composite guide wire (6); The wire-reeling mechanism (5) comprises a fourth motor (51), a power motor shaft (52), a power wheel (53), a power belt (54), a wire-reeling wheel (55), a wire-reeling device (56) and a wire drum (511). The power wheel (53) is connected to the power motor shaft (52), the wire-reeling device (56) is connected to the wire-reeling wheel (55), and the power belt (54) is sleeved on the outside of the power wheel (53) and the wire-reeling wheel (55), so that the power motor shaft (52) can drive the wire-reeling device (56) to rotate; the wire drum (511) is connected to the fourth motor (51) through the power motor shaft (52), the composite guide wire (6) is wound on the wire drum (511), and the rotation speed of the wire drum (511) is controlled by controlling the torque output by the fourth motor (51), so as to realize constant tension winding.

9. A composite guide wire twisting device according to claim 1, characterized in that: It also comprises a frame (1), wherein the frame (1) is provided with a threading plate die (11), a centering wire wheel (12), a conductor wheel (13) and a wire outlet guide wheel (14), and the threading plate die (11) is concentric with the center of the twisting mechanism (3).

10. A composite guide wire twisting method, characterized in that: A composite guide wire twisting device according to any one of claims 1 to 9 is used, and the composite guide wire twisting method comprises: Pulling the first wire (61) twisted by the second twisting disc assembly (39) from the wire guide disc (37) to the lower part of the threading plate die (11); Pulling the second wire (62) twisted by the first twisting disc assembly (36) out of the wire guide disc (37) to the lower part of the threading plate die (11); The first wire (61) and the second wire (62) at the lower part of the threading plate die (11) are passed through the core tube (28) of the braiding mechanism (2), and are pulled out from the other side into the traction mechanism (4); Pulling the third yarn (63) woven by the spindle carrying assembly (26) on the weaving mechanism (2) into the traction mechanism (4); The composite guide wire twisting and weaving device starts to work, the second wire (62) twisted and woven by the first twisting disc assembly (36) is wrapped around the outside of the first wire (61) twisted and woven by the second twisting disc assembly (39), and the third wire (63) woven by the spindle carrying assembly (26) is wrapped around the outside of the second wire (62), so as to form the composite guide wire (6); The composite guide wire (6) is pulled from the pulling mechanism (4) to the wire taking-up mechanism (5) for winding.

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